Use Of Crane in Construction, Advantage and Disadvantage

A crane is a type of machine commonly used in construction, generally equipped with an elevator, ropes or chains and sheaves that can be used both to move and to lift and lower materials horizontally. It is mainly used for heavy lifting and transport to other locations.
One or more simple machines are used to provide a mechanical benefit and thus to move loads on the normal ability of a person.
 Cranes are commonly employed in the transport industry for the loading and unloading of goods for the movement of materials and manufacturing industries for mounting agricultural machinery, in the construction industry.

Tower crane in construction